package hieuph.facerecognition.mainUi;

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.SeekBar;

public class VerticalSeekBar extends SeekBar {

	public VerticalSeekBar(Context context) {

		super(context);

	}

	public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {

		super(context, attrs, defStyle);

	}

	public VerticalSeekBar(Context context, AttributeSet attrs) {

		super(context, attrs);

	}

	protected void onSizeChanged(int w, int h, int oldw, int oldh) {

		super.onSizeChanged(h, w, oldh, oldw);

	}

	@Override
	protected synchronized void onMeasure(int widthMeasureSpec,
			int heightMeasureSpec) {

		super.onMeasure(heightMeasureSpec, widthMeasureSpec);

		setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());

	}

	protected void onDraw(Canvas c) {

		c.rotate(-90);

		c.translate(-getHeight(), 0);

		super.onDraw(c);

	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {

		if (!isEnabled()) {

			return false;

		}

		switch (event.getAction()) {

		case MotionEvent.ACTION_DOWN:

		case MotionEvent.ACTION_MOVE:

		case MotionEvent.ACTION_UP:

			setProgress(getMax()
					- (int) (getMax() * event.getY() / getHeight()));

			onSizeChanged(getWidth(), getHeight(), 0, 0);

			break;

		case MotionEvent.ACTION_CANCEL:

			break;

		}

		return true;

	}

}
